Abstract: A preamplifier arrangement for a drum microphone, in which drum the microphone is arranged inside the drum and wherein the microphone is connected to a preamplifier, characterized in that the preamplifier is secured to the side wall or bottom of the resonance chamber of the drum via a mounting arrangement comprising a threaded part, which is fastened to the preamplifier and fitted through a hole in the side wall or bottom, and a counterpart for it.

Abstract: Hearing aid fitted with a central processing unit (1) having peripherals (3E, 3A) connected to its input and output respectively. Each peripheral includes an identification unit (5) having an the output connected to a first input of a comparator (9). A second input of the comparator is connected to a read-only identification memory (11) containing identification features of the peripherals. An output of the comparator drives a configuration memory (15). As a result, the hearing aid self-identifies its current configuration based on the identification of the peripherals.

Abstract: A call tones management platform provides a facility for configuration of a user profile. The user profile specifies the circumstances under which organizational call tones (such as a call tone of an employer of the subscriber using the phone) or a personal, non-organizational tone should be rendered to a calling party. When a call is placed to the subscriber, the profile is consulted and an instruction for rendering a call tone in accordance with the profile is sent to a call tones content provider or run time site generating call tones during the time of a call. The call tones management platform implements logic for resolving potential scheduling conflicts between organizational call tones and private call tones, such as, for example, a rule in which the organizational call tone trumps personal call tones for calls are made to the subscriber telephone during business hours.

Abstract: An external amplifier and a noise removing method thereof are disclosed. When an audio output inputted to the external amplifier is changed from a first mode to a second mode, channel status information is set to the second mode and no data of the audio output is outputted in the second mode for a predetermined period of time. Therefore, it is possible to remove noise that is generated in the external amplifier when the audio output mode is changed, thereby preventing speaker damage.

Abstract: Techniques for controlling one or more audio amplifiers in or associated with a device coupled on a local area network are disclosed. The device receives at least one selected source from other devices also coupled on the network According to one aspect of the techniques, an automatic shutdown control module is provided in the device to power down the audio amplifiers when there is no audio data flow coming to the device or power up the audio amplifiers when there is audio data flow coming to the device. In one embodiment, the procedure to power down or power up the amplifiers is in accordance with a hysteresis, wherein the hysteresis, being lagging of an effect behind its cause, protects the amplifiers and makes the powering-down or powering-up procedure unnoticeable to a user.

Abstract: A handheld electronic pen having an audio recording mode and an audio playback mode. In the audio recording mode, the pen is configured to activate a microphone for recording audio, determine a position on an encoded substrate during interaction with the substrate associate said the position with the recorded audio. In the audio playback mode, the pen is configured to: determine a position on the encoded substrate, retrieve recorded audio associated with the position, and playback the recorded audio via an audio output device.

Abstract: A handheld electronic pen having an audio recording mode and an audio playback mode. In the audio recording mode, the pen is configured to activate a microphone for recording audio, determine a position on an encoded substrate during interaction with the substrate associate said the position with the recorded audio. In the audio playback mode, the pen is configured to: determine a position on the encoded substrate, retrieve recorded audio associated with the position, and playback the recorded audio via an audio output device.

Abstract: Audio data are played back by a personal computer a relationship with a playback process recognized easily. Displays showing the contents of play lists are arranged and displayed so that the contents become continuous in sequence in a playback sequence from content that is currently being played back from a display of an operation element that causes an image of a playback process to appear or from a display showing the content which is currently being played back. When the playback of one piece of content of one play list from among a plurality of play lists is terminated and one piece of content of an other play list is played back, at least the content that is currently being played back and content to be subsequently played back are displayed so that the contents can be distinguished.

Abstract: The present invention is directed to a condenser microphone with a microphone housing cap with a sound inlet opening, a microphone housing with a cross-sectional opening facing the microphone housing cap, and a diaphragm resting along the cross-sectional opening on the front side of the microphone housing surrounding the cross-sectional opening, and a counter-electrode which faces this diaphragm and which is arranged at a short distance from the diaphragm. The invention is further directed to a corresponding method for producing a condenser microphone of this kind. The invention provides an improved condenser microphone and an improved method for producing such a condenser microphone so that the disadvantages of the prior art are overcome while reducing manufacturing-related resources and, therefore, costs at the same time in that the diaphragm of the condenser microphone is glued to the microphone housing in an angle area between the underside of the diaphragm and the outer side of the microphone housing.

Abstract: Acoustic noise suppression is provided in multiple-microphone systems using Voice Activity Detectors (VAD). A host system receives acoustic signals via multiple microphones. The system also receives information on the vibration of human tissue associated with human voicing activity via the VAD. In response, the system generates a transfer function representative of the received acoustic signals upon determining that voicing information is absent from the received acoustic signals during at least one specified period of time. The system removes noise from the received acoustic signals using the transfer function, thereby producing a denoised acoustic data stream.

Abstract: The specification and drawings present a new method, apparatus and software product for providing flexible audio communication solutions using ear-devices utilizing, e.g., electrode transducers with one or more sensors comprising a surface resonator cavity sensitive to a predetermined acoustic frequency range for using, for example, in headsets and hearing aids. The ear-device can be configured for inserting it into a human ear for a handsfree operation and the sensors can be configured to detect human tissue vibrations using the surface resonator cavity. The acoustic communication solutions with these ear-devices may include: providing two-way communications in normal conditions as well as in noisy conditions, providing protection of hearing, recording the true sound field bin-aurally, providing a playback capability, providing volume enhancement and equalization for persons with hearing defects, etc.

Abstract: A microphone has at least one non-conductive component with at least one side covered by a metal layer which in turn is covered by a protective layer, and the microphone can be a component of a delegate unit of a conference system or a congress system.

Abstract: Methods, systems, and products are disclosed for providing voicemail notifications. A first notification is received that indicates a caller has recorded a voicemail. In response to the first notification, the caller's communication log is updated to indicate that the voicemail was recorded. A second notification is received that indicates the recipient retrieved the voicemail. In response to the second notification, the caller's communication log is updated to indicate that the voicemail has been played. When the recipient listens to the voicemail, the communication log thus informs the caller.

Abstract: A system and method for generating a beamforming signal is disclosed. A beam forming signal is generated by disposing a first microphone and a second microphone in horizontal coplanar alignment. The first and second microphones are used to detect a known signal to generate a first response and a second response. The first response is processed along a first signal path communicatively linked to the first microphone, and the second response is processed along a second signal path communicatively linked to the second microphone. The first and second responses are matched, and the matched responses are combined to generate the beamforming signal on a combined signal path.

Abstract: A system and method for generating, transmitting and distributing audio signals. The system and method may include an array having a plurality of microphones and a plurality of speakers as well as a first processor disposed proximate the array. The system and method can also have a second processor disposed remotely from the array and communicatively coupled with the array, at least one remotely located device having at least one microphone and at least one speaker and one or more remotely located speakers. Also, there may be an audio signal that is generated by one of a microphone on the array and a microphone on the at least one remotely located device, the location of the generation of the audio signal determined by one of the first processor and the second processor, generated audio signal transmitted to at least one of the speakers on the array, the at least one speaker on the remotely located device and the one or more remotely located speakers.

Abstract: The invention provides a beam forming method for a small array microphone apparatus to generate cone beam pattern by processing a combined bi-directional beam pattern of two virtual bi-directional microphones formed through at least three omni-directional microphones arranged in an L-shape. The invention also provides a small array microphone apparatus using the beam forming method according to the invention to suppress noise by processing a combined bi-directional beam pattern of two virtual bi-directional microphones formed through at least three omni-directional microphones arranged in an L-shape, thereby outputting a clear audio signal with cone beam pattern.

Abstract: An ear bud earphone having an outer portion, which may be a microphone or sound input or a contact for wires or acoustic tubes, a central body portion, an ear canal main body and a tab. The ear canal main body of the earphone has flexibility to conform to the ear anatomy. The ear (pinna) has a helix, an anti-helix, a concha including the anatomical elements of a cymba and a cavum, and an ear canal. The ear canal main body is partially inserted into the concha and ear canal opening, with the tab resting on or under the anti-helix.

Abstract: A tire alarm device gives a warning against the runflat operation limit of a pneumatic tire during runflat operation, the tire having a reinforcement layer disposed in each sidewall thereof for enabling the runflat operation. The device includes a tire temperature sensor used to warn of the runflat operation limit, and the tire temperature sensor is disposed on the inner surface of one of the sidewalls facing the reinforcement layer therein.

Abstract: A car-used lock with alerting function comprises a lock installed with a sensor, a buzzer and a transmitter; a receiving control device for receiving signals from the transmitter; the receiving control device being installed with a receiver, a decoder, a microprocessor, an indicator, leaning keys, a dialing control wire and a power source; a car-used handset connected to the receiving control device and having a battery. The receiver serves to transfer the high frequency signals emitted from the transmitter into digital signals. The decoder serves to transfer the digital signals into codes. The microprocessor serves to compare the codes with the built-in data. The lock has the affect of immediate alert and communication with legal frequency bands and power. The power source is from the car used handset. Furthermore, two sets of quick dialing numbers are used so that the line busy of the car owner can be avoided.

Abstract: A transponder reading device and a control system for controlling the handling and/or processing of transponder-bearing objects by such transponder reading devices. The transponder reading device is equipped with its own microcontroller, and with its own control unit. The microcontroller is, as a component (node) of a control unit, able to communicate with other devices of the same design to exchange information. Consequently, several such devices can be operated simultaneously in a confined space without interfering with each other.